<?php
  require('includes/application.php');
  $page_contents = 'install.php';
  if (isset($_GET['step']) && is_numeric($_GET['step'])) {
      switch ($_GET['step']) {
          case '2':
              $page_contents = 'install_2.php';
              break;
          case '3':
              $page_contents = 'install_3.php';
              break;
          case '4':
              $page_contents = 'install_4.php';
              break;
      }
  }
  require('templates/main_page.php');
?>